Abstract: A wearable medical systems (“WMS”) implements a wearable cardioverter defibrillator (“WCD”) by including therapy electrodes coupled to a unit with electronic components, all of which are carried or worn by a patient. A charger is also provided, along with at least two rechargeable batteries; one of the batteries can be powering the unit while the other is being recharged by the charger. The unit may output a prompt to the patient to swap the batteries when the battery in the unit reaches a low-charge condition, or when other conditions are met.

Abstract: A Wearable Medical System (WMS) that implements a wearable cardioverter defibrillator (WCD), includes a microphone and related improvements. The microphone can be on the same dongle as the cancel switch of the WCD. A user trigger module may permit the patient to perform a deliberate act and, in response, the system may start recording audio from the ambient sounds, including their own voice, and/or start recording the ECG. The deliberate act may even be a voice command by the patient that is parsed by a voice recognition module. The WMS may continuously record audio and then continuously discard it, and further stop the discarding if it detects a recording trigger. The WMS may create an exportable computer file that has audio-related data, which can have playable sound data or transcribed voice data.

Abstract: In one embodiment, a method to track the cardiac health of a patient is described. The method includes connecting to at least one motion sensor configured to sense movement of a patient and receiving motion data from the at least one motion sensor. The method further includes monitoring an activity level of the patient based at least in part on the motion data and detecting a change in the activity level of the patient based at least in part on the motion data. The method also includes altering a monitoring status of the cardiac health of the patient for a predetermined period of monitoring time based at least in part on the change in activity level.